CVE-2026-3112

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CVSS 3.1

4.9 medium

EPSS

<1%p35

Published

Mar 26, 2026 (Mar 26, 2026)

Modified

Jun 17, 2026

Description

Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to validate Advanced Logging file target paths which allows system administrators to read arbitrary host files via malicious AdvancedLoggingJSON configuration in support packet generation. Mattermost Advisory ID: MMSA-2025-00562

Vendors: mattermost
Products: mattermost server
Weakness: CWE-22
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.4%)

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